I have a chrome extension with about 30k users and have always felt like the chrome web store feels sketchy and frankly dangerous. Particularly when dealing with extensions that offer highly desired features on hugely popular sites, e.g. 'download all images off a user's Instagram'. It's ripe for abuse, especially luring in hundreds of thousands of users when the extension is 'fine' then switching over to something not fine.

There are two things that I think would be beneficial: allowing users to easily disable the extension from automatically updating, and allow users to be able to see the source code of the extension directly in the chrome web store. I hope they already have some kind of internal monitoring system for their reviews to set off an internal alert if someone says 'malware' etc and to investigate further.